Improved mill for grinding  sttmac



shifting the scraper so REMINGTON G. CHASE, or ALEXANDRIA, VIRGINIA.

Latas Fmt No, 85,726, dated .mma/ry '12, 1869.

IIMPROVEDIVIILL FOR G-RINDIEQ'G' S'U'MIAC.

The Schedule referred to in these Letters Patent and making part ot thesame.

`elianibenaiid at the centre and inside of the bearing or shaft of themill, by means of an angular' arm, con-v nected with-the scraper andupright lever that extends up and through the upright shaft into aseparate room or chamber, apart from the room or chamber in which themill operates; and y I The object is to prevent the operater from beingbrought in contact with vthe dust of the mill while in operation, thedust being very injurious to the lungs and eyes.

Another "object is to enable: Vthe operator to adjust the .scraperwithout stopping or ldelaying the grinding, and in nowise endangeringthe limbs or Alife of the operator, and saving muchtime and troubleheretofore required in stopping the engme or the grinding of the mill,as it was necessary lheretofore to stop the mill every fifteen ortwenty. 'nutes, for the purpose of as to throw offthe ground sumacoutsidegof the grinding-hoor to be discharged.

This improvement can also be attached to snu' and spice-mills.A

- A represents the apartment or 'close room containing the mill forgrindingV sumac, snuff, or spices, the drawing exhibiting a perspectiveview of the room and mill, with theone side open so as to show theoperating-devices. fAbove this room A one, two, or more stories may beerected, to contain the dried sumac.

, B represents the lower iioor of an upper story, with the feed-pipe O,top of mill-shalt D, and the top of ijusng-lever E, extending above theupper side of oor The dried sumac is passed through the feed-pipe O, andfalls down, between4 the rollers F and centre-shaft l), to themill-floor G,Where it is finely ground by the rollers Ii, and scrapedoii into the grooved trough H, (surrounding the mill-Hoon) from whencethe ground sumac is discharged through a iiight or lower pipe, J, afterwhich it can be carried. up by elevators and screened.

The centre scraper K passes the sumac under the rollers F. l

The outside' scraper L is adjustable, so as tokeep the sumac'on thefloor G while being ground, andv when adjusted at an angle from thecircular edge of the floor G, it then throws off the ground sumac' intothe trough H. .x

This outside scraper L is suspended to an arm, M, projecting from thecentre shaft D, and itis shifted and adjusted out or in (as shown by thered lines) by means of an angular arm, N, connected at one end of itwith the upright lever E.

lThe centre of the angular arm is pivoted to a pro- I jecting brace atP, and the arm is operated by the lever E, that extends up-and throughthe centre of the upright shaft D, so that the lever can be operated inthe centre andon the outside of the room A, containing the mill, thatthe operatormay raise and lower the lever E without going into themill-room or stopping the mill.

v I do not claim broadly the scraper L, as that has been used before;but

What I claim as my invention',`and desire to secure.

by Letters Patent, isl The arrangement herein described of the scraperL, suspended from the arm M, the angular armN and lever E, thelatterpassing through the hollow shaft D into the,s vupper room B, alloperated as set forth.

n. e. oHAsn:l

. Witnesses:

J. FRANKLIN RmGARr, EDM; F. BnowN.

